Because tried and true, time-tested is absolutely crucial for many industries. But heck, what could go wrong? Just discontinue macOS support of the immediate last gen hardware so everyone would be forced to enjoy “latest and the greatest”, and all live in the bleeding edge beta testing every new stuff coming out. I’m sure nothing could go wrong.
Even better, just build new buildings every year cause 1-year-old building sucks, tons of defects etc.